Improvement in road-scrapers



UNITED STATES PATENT OFFICE.

IVILLIAM I). MAYFIELD, OF FORT WORTH, TEXAS.

IMPRovEMEN-r IN RoAD-scRAPERs.

Specification forming part of Letters Patent No. 150,338, dated April 28, 1874; application ed January 3, 1874.

To all whom it may concern Be it known that I, -VILLIAM D. MAY- FIELD, of Fort Worth, in the county of Tarrant and State of Texas, have invented a new and valuable Improvement in Road-Scrapers; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings, making a part of this specication, and to the letters and figures of reference marked thereon.

Figure l of the drawings is a representation of a plan View of my road-scraper. Fig. 2 is a side view of the same. Figs. 3 and 4 are details of the same.

This invention has relation to road-Scrapers which are applied to carriages; and itconsists, mainly, in arranging the scoop or scraper at the front extremity of a long draft-tongue and applying it to adjusting-levers which extend back to a drivers seat on the axle of two transporting-wheels, whereby the earth, Ste., collected in the scraper can be dumped in front of the horses drawing the machine, as will be hereinafter explained. The invention further consists in novel means for supporting a scraper in front of a draft-tongue, and for adjusting and dumping the scraper, as will be hereinafter explained.

The following is a description of my improvements In the annexed drawing A represents the axle-tree oftwo transporting-wheels, A A', and B is a drivers seat, which is mounted on said axle. C designates a draft-ton gue, which is secured to the axle A and sustained by braces a a; and w is a caster-wheel, which supports the front end of the tongue O and relieves the horses necks from the weight of the tongue and scraper. The draft-tongue is of such length as that it will extend some distance in front of horses when they are hitched to the double-tree O', and thereby allow material gathered in a scraper, E, to be safely dumped over embankments in front of the horses. The scraper or scoop E is connected by pivots to the depending portions e of a bail, c1. This bail is secured to the shortest arm of a lever, F, and sustained by diagonal braces c2 c2. When the scraper E is in the position shown in Figs. 2 and 3 its rear end is supported by an inverted bail,- e3, and it is held down on this bail by means of a spring-catch, I, and a beveled nose, o, shown clearly in Fig. 3. By means of a cord, c, which is attached to the spring-catch l and extended back to the drivers seat B, the driver can release the scraper from said catch and allow it to tilt and discharge its load; and by means of a short cord which is attached to the cord c and to the back of the scraper, the latter can be drawn back and latched. The lever F is pivoted at j to ears g, which are formed on the front end of a lever, G, and which are connected by their rear ends to a pivot, i, passing through the drafttongue C near its front end. Both levers F and G extend back and pass through a guideloop, J, rising from the axle-tree A in close relation to the drivers seat B. These levers are provided with springs s s, which bear against one of the bars `of guide-loop J and press the lipped edges of the levers against the other bar of guide J. At the upper and lower extremities of the bar last named are notches for receiving the lips formed on the levers F G, and holding these levers in a raised or depressed position.

When the machine is in operation the driver can adjust the scraper at different angles by means of the levers F G, and by depressing;` the rear end of the upper lever G after the lower lever is depressed, the latter, together with the scraper, will be bodily raised.

When the scraper is tilted its rear end wil be caught and held by a hook, h, under the front portion of the lever F, in `which position the dumped load can be leveled by the scraper.

WVhat I claim as new, and desire to secure by Letters Patent, is-- 1. A tilting scraper, E, applied on the end of lever F and arranged in front of the drafti tongue O, substantially as described.

2. The combination of the hook h, lever F7 lever F and draft-tongue O, substantially as and catching device Z o with a tilting scraper7 described. E, arranged substantially as described. In testimony that I claim the above I have 3. The levers F G, pivoted as described, hereunto subscribed my naine inthe presence the tilting scraper E, and the drafttongne C, of two Witnesses.

supported in front by a easter-Wheel w and l Y behind by two wheels and an axle, substan- VILLIAM DUDLEY MAYFIELD tially as described. Vitnesses:

4. The braced bail e el, the inverted bail c3, I). J. BUNDY,

the catch Z0 and hook 7L, combined with the WM. E. ORGAIN. 

